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//
// MemberReference.cs
//
// Author:
// Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
//
// Copyright (c) 2013-2017 Jean-Philippe Bruyère
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Linq;
using System.Reflection;
namespace Crow
{
/// <summary>
/// link MemberInfo and instance in one class
/// </summary>
public class MemberReference
{
public object Instance;
public MemberInfo Member;
public PropertyInfo Property { get { return Member as PropertyInfo; } }
public FieldInfo Field { get { return Member as FieldInfo; } }
public EventInfo Event { get { return Member as EventInfo; } }
public MethodInfo Method { get { return Member as MethodInfo; } }
#region CTOR
public MemberReference () {}
public MemberReference (object _instance, MemberInfo _member = null)
{
Instance = _instance;
Member = _member;
}
#endregion
/// <summary>
/// Try to find member by name in instance class or, if not found,
/// in extension methods
/// </summary>
/// <returns>True if found, false otherwise</returns>
/// <param name="_memberName">Member name to search for</param>
public bool TryFindMember (string _memberName)
{
if (Instance == null)
return false;
Type t = Instance.GetType ();
Member = t.GetMember (_memberName, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance).FirstOrDefault ();
#region search for extensions methods if member not found in type
if (Member == null && !string.IsNullOrEmpty (_memberName)) {
Assembly a = Assembly.GetExecutingAssembly ();
Member = CompilerServices.GetExtensionMethods (a, t).Where (em => em.Name == _memberName).FirstOrDefault ();
}
#endregion
return Member != null;
}
public override string ToString ()
{
return string.Format ("{0}.{1}", Instance, Member);
}
}
}
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